Oil-burner.



P. D. P. WALTBRS z- G. W. LATI'MER.

OIL BURNER. APPLIOATION FILED 121B. 21, 1911.

Patented Aug. 27, 1912.

ATTORNEY.

FRANK D. F'. WALTans, or Huit/morante,4

KANSAS, AND GEORGE W. LATIMER, OF

INDEPENDENCE, MISSOURI.

GIL-BURNER.

' Specification of Letters Patent; l'

Patented Aug. 2"?, 1912i..

Applieaticn led February 21, 1.91.13 Serial Ne. 609989.

To all whom t may concern Be it known that we, FRANK D. F. WALTERS and GEORGE NV. LATIMER, citizens of the United States, residing at Humboldt and Independence, in the counties of Allen and Jackson4 and States of Kansas and Missouri, respectively, have invented certain new and useful Improvements in Oil-Burnn ers of which the following is a specilication.

ur invention relates to improvements in oil burners, end one of our objects is to provide a burntof this character which is particularly adapted for use in cement kilns and driers.

A further object is to obtain complete atomization of the oil immediately after its discharge from the burner, so that ignition may take place close to said burner.`

A further object is to obtain uniform density of air and oil, so that complete combustion may take place, and economy in consumption of oil be thereby edected.

Another object is to arrange the burner in such manner that the flow of oil therethrough will be so strong as to prevent accumulation of sediment and consequent clogging of the burner tip.

We obtain the foregoing objects by discharging the oil backwardly in conical form against a spiral column of air, and by c0ntrolling the How of oil through the burner at the tip thereof, so that initial pressure of the oilwill be had at said tip andthe oil discharged therefrom with considerable force.

Other objects of the invention will hereinafter appear, and in order thatsaid invention may be fully understood Areference will now be made to the accompanying drawing in which:

Figure 1 shows a vertical longitudinal section ofour improved burner. Figs. 2 and 3 are transverse sections taken on lines II-II and III-III, respectively, of Fig. l, and Fig. 4 is an enlarged central section v of the lforward endof the burner, on

:combustion `chamber 2, a suitable distance, sind p1pe being provided at its forward end with a fixture comprising a conical nozzle 5, a centrally-disposed sleeve 6, and a plurality of equally spaced spiral blades 8, connecting sleeve 6 to nozzle 5. Nozzle 5 is removably secured to the forward end of air-pipe 4, through the intermediacy of internal threads 9 and external threads 10 at the rear end of the nozzle and the forward end of the pipe, respectively.

11 designates an oil-tube extending axially through the horizontal portion of pipe 4 and nozzle 5, said oil-pipe being slidablymounted in sleeve 6, and a st nliing-box 12, which latter is locatedat the elbow 4a of the air-pipe 4. Oil-tube 11 is held from accidentalv longitudinal movement by a set-screw lf3 bearingv against the same and .extending outward through a portieri of the stung-V box 12, and the forward end of said oil tube terminates in the form of a beveled valveseat 14.. The flow of oil through tube l1 is f controlled by a valve comprising a stem 15,

a handle` 16, securedvto the rear end of said stem, and a valve-plug 17 secured to the forward end of stem 15. Valve-plugl? has a concave rear side 18, adapted to snugly fit seat 14 and thus cut off the iowof oil through pipe ll'when desired. Valve-plug 17Y is adjustable longitudinally independently of the oi1-tube 11, said valve-plug being provided at its rear end with externally threaded radial wings 19 engagin internal threads 20 at the forward end o said oil tube. Valve seat 14 and the concave rear side 18 of valve 17 form, when the valve lis open, a conical port 21 to discharge the oil rearwardly in` conical form yagainst the steam orl air escaping through nozzle 5. Stem 15 extends rearward through astuii'- ing-box 22 on an elbow secured to the rearend of the oil-tube 11. v

By referring to Fig. 1 of the drawing, it lwill be noted that the oil-tube ll is of the same diameter throughout its length, consequently oil vforced therethrough from a source of supply (not shown) will be discharged at inltial pressure through port 21 instead of at a lower pressure due to passing through a chamber or ipe of larger diameterthan t-he'oil tube, before finally escaping through port 21. By forcing the oil at high pressure through port 21, it dis' charges t erefrom in the form of a conical thereby insures uniform discharge throughfout the area ofthe forward end of said nozzle. By thus atomizing the oil at the tip of the burner, the point of ignition is broughtl v Cdischar -ng oil to carry all impurities therewith, a er which the size of the port may be closer to said tip than if atomization of the oil took place farther from said tip. Should port 21 become clogged, it is only necessary to open the valve Wide enough to permit the again reduced to normal, hence, the advantage in controlling the floWof oil immediately at the point of discharge, instead of at' the rea-r of the oil-tube in the customary manner. When a comparatively large quantity of oil is to flow through the oiltube 11, set-screw 13 is removed and said tube is drawn backward until its tip is within nozzle 5, which prevents too great a spread of the oil, and when only a small quantity of cil is to flow through tube 11,

said tube is adjusted 'forward slightly beyond the forward end of nozzle 5, 'to give the oil an opportunity to spread after discharging through port 21. When a large quantity of oil is being consumed, additional air is admitted to the combustion chamber 2 through the register 3, the movable member 3a of which is provided with diametricallydisposed lugs 3b, Wherebyit may be conveniently turned.

'Having thus described our invention, what We claim, and desire to secure by Letters Patent, is:

An oilburner consisting of an oil-tube having. a beveled valve-seat and internal threads at its discharge end, a valve-plug having a concave rear side adapted to snugly lit said valve-seat and provided with externally-threaded radial Wings engaging the internal threads of the oil-tube, a stem secured to said valve plug and extending 'through the oil-tube, and a handle fixed to the outer end of said stem.

In testimony whereof We affix our signatures, in the presence of two Witnesses.

FRANK D. F. WALTERS. GEORGE W. LATIMER. Witnesses:

F. G. FISCHER, E. C. LILLIAN. 

